Involute Gear & Machine is the North American Distributor for Kashifuji Gear Hobbing Machines and Osaka Seimitsu Kikai (OSK) Gear Inspection Machines. We also manufacture REDRING Gear Hone Tools. Additionally, we offer contract gear inspection services.

Machine Tool Builders - Your Gear Machinery Experts. Established in 1995 as a machine tool service organization, MTB is today renowned as the gear industry’s leading source for a complete array of machine rebuilding, recontrols and service, as well as world class new machine brands for the complete production of fine and medium pitch cylindrical gears.